Sky Guns For The Murder Master

by Robert J. Hogan

From the January, 1940 issue of G-8 and His Battle Aces...

Death was no stranger to the Master Spy. He had met the ghostly form on many
occasions, as the gaunt spectre rode the flaming wings of a ship that was
filled with lead. But here was a problem that taxed every atom of his courage
and his intelligence.

Death had gone underground!

The Mole was at work! The Mole--the foster brother of Murder--a maniac with
a brilliance second to that of but one man. And that man was G-8, upon
whose willing shoulders descended the problem of saving the Allied cause
once again!